Usually, most turrets will have a hole near the center into which a wooden dowel can be inserted. If the bottom end of the wooden dowel is placed into a 1x6 board, then one or more turrets can be supported for storage. The 1x6 can then become a table-top item, or a wall-mounted shelf for safe, out-of-the-way storage for numerous turrets.
Take a look at the Dillon turret stands to see what I mean. The Dillon version is a single turret stand, but try to envision several of those glued together side-by-side.
Hope this helps!